•Make sure there is enough space (greater than 10 cm (3.94 in)) around the air intake and outlet vents on the firewall for good ventilation.

•Make sure the installation site has a good cooling system.

ESD prevention

To prevent electrostatic discharge (ESD), note the following guidelines:

•Make sure that the firewall and the floor are well grounded.

•Take dust-proof measures for the equipment room.

•Maintain the humidity and temperature at a proper level.

•Always wear an ESD-preventive wrist strap when touching a circuit board or transceiver module.

•Place the removed interface module on an antistatic workbench, with the face upward, or put it into an antistatic bag.

•Touch only the edges, instead of electronic components when observing or moving a removed interface module.

To use the ESD-preventive wrist strap, perform the following steps: Step1 Wear the wrist strap on your wrist.

Step2 Lock the wrist strap tight around your wrist to keep good contact with the skin. Step3 Attach the ESD-preventive wrist strap to the rack with the alligator clips.

Step4 Make sure that the rack is well grounded.

Figure 4 Use an ESD-preventive wrist strap

(1)

ESD-preventive wrist strap

(2) Lock

(3)

Alligator clip

 

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